Doctor profile · Federal record

Dr. Timothy Tsai, M.D.

Emergency Medicine Physician (CMS: Emergency Medicine) · West Tisbury, MA

  • NPI 1740387356
  • Accepts Medicare
  • 38 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
65 Music Street
West Tisbury, MA 02575
(508) 560-2120
Mailing address
Po Box 1332
West Tisbury, MA 025751332

Credentials & registration

NPPES · NUCC
NPI registered
September 2006 — 20 yrs on file
Profile last updated
October 15, 2012
Year of graduation
1988 — 38 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
Massachusetts #76209

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1740387356. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
16
Distinct HCPCS
1
Medicare allowed
$2,024
HCPCS Description Services Patients Avg allowed
99284 Emergency department visit with moderate level of medical decision making 16 15 $126

In context: peer comparison

Among 1 peers in this city , average services per provider: 16. This provider delivers 1.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Timothy Tsai's medical specialty?
Dr. Timothy Tsai practices Emergency Medicine Physician in West Tisbury, MA.
Where does Dr. Timothy Tsai practice?
Dr. Timothy Tsai practices at 65 Music Street, West Tisbury, MA 02575. Office phone: 5085602120.
What is Dr. Timothy Tsai's NPI?
Dr. Timothy Tsai's National Provider Identifier (NPI) is 1740387356, issued by NPPES.
Does Dr. Timothy Tsai accept Medicare assignment?
Yes. Dr. Timothy Tsai accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Timothy Tsai commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.